Preheat oven to 350 degrees F.

Grease or spray bundt cake pan.

Mix ingredients from cake mix through eggs together and beat well.

In a separate small bowl, mix sugar and cinnamon together.

Sprinkle a small amount of sugar and cinnamon mixture in the bottom of the bundt pan.

Pour one-third of the batter in the bundt pan.

Sprinkle cinnamon sugar mixture over the batter,.

Pour one-third of the batter in the bundt pan.

Sprinkle cinnamon sugar mixture over the batter,.

Pour one-third of the batter in the bundt pan.

Sprinkle cinnamon sugar mixture over the batter,.

Take a butter knife and swirl through the batter to distribute the cinnamon sugar into the batter.

Bake for 50 minutes or until a toothpick comes out clean.

Let cake stand in pan to cool 10 to 15 minutes and then turn out onto a plate. You can dust with powdered sugar if desired.